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  <div class="section" id="module-nis">
<span id="nis-interface-to-sun-s-nis-yellow-pages"></span><h1><a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> --- Sun 的 NIS (黄页) 接口<a class="headerlink" href="#module-nis" title="永久链接至标题">¶</a></h1>
<hr class="docutils" />
<p><a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> 模块提供了对 NIS 库的轻量级包装，适用于多个主机的集中管理。</p>
<p>因为 NIS 仅存在于 Unix 系统，此模块仅在 Unix 上可用。</p>
<p><a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> 模块定义了以下函数：</p>
<dl class="function">
<dt id="nis.match">
<code class="sig-prename descclassname">nis.</code><code class="sig-name descname">match</code><span class="sig-paren">(</span><em class="sig-param">key</em>, <em class="sig-param">mapname</em>, <em class="sig-param">domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.match" title="永久链接至目标">¶</a></dt>
<dd><p>返回 <em>key</em> 在映射 <em>mapname</em> 中的匹配结果，如无结果则会引发错误 (<a class="reference internal" href="#nis.error" title="nis.error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">nis.error</span></code></a>)。 两个参数都应为字符串，<em>key</em> 定长 8 个比特。 返回值为任意字节数组（可包含 <code class="docutils literal notranslate"><span class="pre">NULL</span></code> 和其他特殊值）。</p>
<p>请注意如果 <em>mapname</em> 是另一名称的别名则会先检查别名。</p>
<p><em>domain</em> 参数可允许重载用于查找的 NIS 域。 如果未指定，则会在默认 NIS 域中查找。</p>
</dd></dl>

<dl class="function">
<dt id="nis.cat">
<code class="sig-prename descclassname">nis.</code><code class="sig-name descname">cat</code><span class="sig-paren">(</span><em class="sig-param">mapname</em>, <em class="sig-param">domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.cat" title="永久链接至目标">¶</a></dt>
<dd><p>返回一个字典，其元素为 <em>key</em> 到 <em>value</em> 的映射使得 <code class="docutils literal notranslate"><span class="pre">match(key,</span> <span class="pre">mapname)==value</span></code>。 请注意字典的键和值均为任意字节数组。</p>
<p>请注意如果 <em>mapname</em> 是另一名称的别名则会先检查别名。</p>
<p><em>domain</em> 参数可允许重载用于查找的 NIS 域。 如果未指定，则会在默认 NIS 域中查找。</p>
</dd></dl>

<dl class="function">
<dt id="nis.maps">
<code class="sig-prename descclassname">nis.</code><code class="sig-name descname">maps</code><span class="sig-paren">(</span><em class="sig-param">domain=default_domain</em><span class="sig-paren">)</span><a class="headerlink" href="#nis.maps" title="永久链接至目标">¶</a></dt>
<dd><p>返回全部可用映射的列表。</p>
<p><em>domain</em> 参数可允许重载用于查找的 NIS 域。 如果未指定，则会在默认 NIS 域中查找。</p>
</dd></dl>

<dl class="function">
<dt id="nis.get_default_domain">
<code class="sig-prename descclassname">nis.</code><code class="sig-name descname">get_default_domain</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#nis.get_default_domain" title="永久链接至目标">¶</a></dt>
<dd><p>返回系统默认的 NIS 域。</p>
</dd></dl>

<p><a class="reference internal" href="#module-nis" title="nis: Interface to Sun's NIS (Yellow Pages) library. (Unix)"><code class="xref py py-mod docutils literal notranslate"><span class="pre">nis</span></code></a> 模块定义了以下异常：</p>
<dl class="exception">
<dt id="nis.error">
<em class="property">exception </em><code class="sig-prename descclassname">nis.</code><code class="sig-name descname">error</code><a class="headerlink" href="#nis.error" title="永久链接至目标">¶</a></dt>
<dd><p>当 NIS 函数返回一个错误码时引发的异常。</p>
</dd></dl>

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